1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20be9f01d526faf526fb60b3efbc0db86a143108186956269c8f27add6dfb825. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4621b445-b00a-42c3-ad50-5a262b126f84.json and https://artists.proofprofile.net/proofs/artist/4621b445-b00a-42c3-ad50-5a262b126f84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5850dd4a13654e97ffb03ec116b706acad4f7de99c79b28be06b5b8c504097b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABH1271643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385d9ac06fc831c8b8e85b9011d84ea9f383f4ca40315f4da693c925f3fe6fb4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABH1271647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4243ddc4a64874a632d7e1fe69749b6299fb41c3f2a789048a0eefb37482c436. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABH1271651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b826fb110abb289b29d8a98782ed0d9882899706b2af2bef616c6e6bcb4a46. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1371372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa4d138af341ea6fd177ccbea5723320d61a6860d0570da00ee5eeb8c10da3d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1371373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd9ea0dd25a323113d50aaeb2ebbb9be4272a6ff1563af1e11d405af309e5e3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:03:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1371377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29847374b420bd75a646bd297a2b95d487f7e5495640056972c35139d47257a0. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1371378.
Marca Tu Puerta, Predicacion (En Vivo) [feat. Magaly Rivera]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e32ae950fac6e384a225ada9b3ae5e36a9fda55737618cf8232af1cc56e1ec5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1371379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715db7bcf6c80735aa809eaeb59eb8cf37f401ee8d38db61ff7abce89243657. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABP1300248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b39a506a6157593d8d4a95de31dc0a742a4d3890ca482075340083354ddfbc. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABP1300249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34140ab352b01f8b6ae8ae69250df587ed3ad1fadc1c745176058fb5d18dd8c0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABP1300250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd98ae10a1623b08094c14b847b4e9f29f25023511a795fca6c44c08577d49ff. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABP1300253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b402d12562d5e454219a68fa1d52671493f6fceb6b2b03c6baf3dc2b8a5e2b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABU1444112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc530a7762dcaa2e3d0e133fb5d65441eb58bbc1bbfe35cb7dc0186623536b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABU1444116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabc9af3ab1edb78dac65943cd0e3e24b7c74167f8f6ddb8fdf5d968726705e6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABU1444124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8d32c49627fb2f9584d0bcb9ea6d32e86900b5d48d69fbea64090530fb651b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:40:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGA2217891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b6839709b06f8baa47f865b73045be69a9797094057cb09e54c8be441023dc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG2317262.